DB+
Reinforced Vapour Control Layer and Airtightness Membrane
Advantages
- High protection against structural damage and mould, even in the event of unexpected moisture ingress
- Protection in winter climate with MVTR-value of 20 MNs/g
- Back diffusion in summer with MVTR value of 2 MNs/g
- High tear resistance
- Suitable for all fibrous thermal insulation (also blown-in insulation)
- Ecological solution for sealing the building envelope
- Lowest VOC rating in hazardous substance test
Areas of application
DB+ is the original humidity-variable vapour control layer. It is a reinforced, cellulose-based vapour control layer and airtightness membran for protecting insulation in timber frame construction.
The best possible combination of safety and ecology
A tried-and-tested principle
The humidity-variable diffusion resistance of DB+ varies by a factor of 10 between winter and summer.
Over the last 25 years, many millions of square metres of this product have been installed, often in very demanding applications.
DB+ works on the principle of climate-controlled membranes: In winter climate conditions, the membrane is more impermeable to diffusion (sd value approx. 4 m) and protects the structure against the entry of moisture. In summer climate conditions, it becomes more permeable to diffusion when necessary (sd value approx. 0.4 m) and facilitates significant drying to the inside.
This results in a high degree of protection for the structure even in the case of unforeseen entry of moisture due to convection, flank diffusion or building materials that are moist when installed.
Protection thanks to humidity-variability
As a result of its humidity-variable diffusion resistance, DB+ is also suitable for use on structures that are closed to diffusion on the outside. Hygrothermal modelling checks should be performed.
The high-performance INTELLO system offers even better protection against damage to structures.
It is even better at balancing out unforeseen moisture loads and should be preferred for flat and green roof constructions.
